Update: Chivas USA got some much needed firepower up front last week when Marvin Chavez scored two goals in his debut to lead the team to a 3-1 victory over Colorado. With the future of leading striker Erick Torres — on loan from Guadalajara until June — up in the air for Chivas USA, Chavez is the team's best offensive threat going forward. FC Dallas, which beat Chivas USA, 3-1, earlier this season, is hobbling into Saturday's game after losing four in a row and sustaining long-term injuries to key players Kellyn Acosta, Hendry Thomas and Mauro Diaz. None of those three players will be available for Saturday's game.